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采用模板法在FTO玻璃上制备TiO2介孔薄膜,其中模板为PVC-g-POEM聚合物。通过控制PVC与POEM聚合物的质量比例来调节TiO2介孔薄膜孔径的大小及致密程度,分别得到高透过型的TiO2(对光波的透过率较高)介孔薄膜及高反射型的TiO2介孔薄膜(对光波的吸收率较低)。将高透过型、高反射型、高透过型/高反射型的TiO2介孔薄膜组装成染料敏化电池(DSSCs),结果表明:相同厚度下,基于高反射层/高吸收层的TiO2介孔薄膜的DSSCs的转化效率(4.7%)远远高于高吸收层的DSSCs(2.3%)、高反射层的DSSCs(1.5%)。
Mesoporous TiO2 films were prepared on FTO glass by the template method, in which the template was PVC-g-POEM polymer. By controlling the mass ratio of PVC and POEM polymer to adjust the pore size and density of TiO2 mesoporous film, respectively, high permeability TiO2 (high transmittance of light wave) mesoporous film and highly reflective TiO2 Mesoporous film (low light absorption rate). The results show that TiO2 mesoporous thin films with high transmittance, high reflection, high transmission / high reflection type were fabricated by dye-sensitized cells (DSSCs) The conversion efficiency of mesoporous DSSCs (4.7%) is much higher than that of DSSCs (2.3%) and highly reflective layer (1.5%) of highly reflective layer.